CN111606095B - Textile fabric unwinding drum - Google Patents

Abstract

The invention relates to the technical field of spinning. The fabric unwinding roll comprises a base, wherein a fabric roll supporting mechanism and a conveying mechanism are sequentially arranged on the base along the cloth conveying direction; the yardage roll supporting mechanism comprises a pair of mounting side plates arranged on two sides of the front end of the base, and two unwinding drums are arranged between the mounting side plates; the unwinding drum comprises a drum body arranged transversely and an encircling assembly arranged in the drum body, and a guide outlet is formed in the lower part of one side of the drum body; the encircling assembly at least comprises three annular carrier rollers extending along the length direction of the cylinder body. The invention can effectively ensure the stability of the cloth roll in each unwinding stage, prevent the cloth roll from jumping, provide a powerful guarantee for the normal work of the conveying mechanism, is particularly suitable for occasions with higher requirements on unwinding speed, and lays a foundation for the speed increase of a cloth processing production line.

Description

A textile fabric unwinding drum

technical field

The invention relates to the technical field of textiles, in particular to a textile fabric unwinding drum.

Background technique

Textile unwinding equipment is a kind of equipment widely used in the production process of textile flat processing. It is then transported to subsequent processing equipment for reprocessing. At present, the traditional unwinding equipment mainly includes an unwinding groove and an unwinding roller. The unwinding roller is generally composed of two upper and lower actively rotating pinch rollers. The cloth roll is placed in the unwinding groove and is in contact with the idler roller to maintain a state of free rotation; the unwinding roller clamps and conveys the cloth backward, thereby driving the cloth roll to rotate freely in the unwinding groove to realize unwinding. The equipment improves the unwinding efficiency of the cloth to a certain extent. However, the existing unwinding equipment still has certain defects in the use process and needs to be improved.

1. In the composite process, it is often necessary to apply glue and hot-press two layers of cloth of the same material or different materials. Therefore, it is often necessary to unwind two rolls of different cloth materials at the same time, and the synchronization of unwinding will directly affect the stability of subsequent gluing and hot pressing. When the existing unwinding equipment is used for unwinding, two sets of independent motors are used for driving, and the effect of synchronous unwinding is realized through unified circuit control of the rotation speed of the two sets of motors. However, this method not only has complicated control logic, but also often needs to set up several sensors to collect real-time working conditions. This not only increases the risk of circuit failure, but also requires a larger investment in equipment costs.

2. During the pre-processing and storage and transportation of the cloth, there are often certain impurities on the surface, such as cotton balls, thread ends, dust, etc. If these impurities are not removed, it will affect the subsequent gluing and hot pressing. , printing and dyeing processes. The traditional methods of removing these impurities mainly use stick or wind blowing, but in practice, we found that the sticking method has a certain risk of damage to the cloth. The stability of the roll has a certain impact, especially for high-speed unwinding equipment, this method is not suitable. Although the method of wind blowing can reduce the damage to the cloth, and the posture of the cloth is more stable during the unwinding process, the cleaning ability of the cloth is limited due to the far wind source, and dust removal equipment is required to reduce the dust in the workshop. Therefore, if an unwinding device can be developed that can effectively remove impurities on the surface of the cloth while preventing damage to the cloth, it will solve a major problem in the art.

3. The traditional unwinding equipment adopts the form of multiple fixed idler rollers, that is, the multiple idler rollers are arranged in the form of a semi-circular groove, and the cloth roll is supported in a semi-encircled manner. The support of the lower part of the cloth roll, on the other hand, improves the smoothness of the rotation of the cloth roll during the unwinding process through its own rotation. This method has little effect on the low-speed unwinding of the cloth roll, but for the high-speed unwinding of the cloth roll, due to the lack of effective restrictions in the upper part of the cloth, the jumping range of the cloth roll is large, which can easily affect the overall stability of the equipment. For this reason, an idea in the prior art is to set a pressing roller above the cloth roll, and press the top of the cloth roll to restrict the cloth roll, which at first glance can improve the stability of the cloth. However, in the process of continuous unwinding of the cloth roll, its diameter will become smaller and smaller, and the contact angle between it and the pressure roller or the idler is constantly changing, so the top of the cloth roll is simply limited. The above does not solve the problem of the stability of the cloth roll. Further, due to the influence of the unwinding speed of the cloth roll, the efficiency of the subsequent process of the cloth is also restricted.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a textile fabric unwinding drum which can hold the cloth roll tightly along with the unwinding process to maintain the stability of the cloth roll.

In order to achieve the above purpose of the invention, the technical solution adopted in the present invention is: a textile fabric unwinding drum, comprising a base, and a cloth roll supporting mechanism and a conveying mechanism are sequentially arranged on the base along the cloth conveying direction;

The cloth roll supporting mechanism includes a pair of installation side plates arranged on both sides of the front end of the base, two unwinding drums are arranged between the installation side plates, and a cloth roll is installed on each of the two unwinding drums. ;

The unwinding drum comprises a transversely arranged drum body and an encircling assembly arranged in the drum body, and a lead-out port is provided at the lower part of one side of the drum body;

The encircling assembly is composed of at least three ring rollers extending along the length direction of the cylinder body, and the installation area of the cloth roll is formed between the ring rollers; One end of the roller is installed on one end of the pendulum rod and forms a rotational cooperation with the pendulum rod, and the other end of the pendulum rod is hingedly arranged in the installation hole on the side wall of the cylinder body through the hinge shaft;

The unwinding drum is also provided with a clamping drive assembly for driving the corresponding swinging rods of the ring idlers to swing, so as to drive the ring idlers to be clamped on the cloth roll.

Preferably, a plurality of arc-shaped guide holes are evenly arranged on the two end surfaces of the cylinder body corresponding to the number of the ring idlers, and the guide holes are consistent with the swing track of the ring idler; The head is correspondingly arranged in the guide hole and forms a sliding fit with the guide hole;

The clamping drive assembly includes a connecting head and an elastic reset piece, both ends of each of the ring idlers are provided with a connecting head, and the connecting heads of two adjacent ring idlers are connected to each other through the elastic reset piece.

Preferably, the elastic restoring member is a coil spring.

Preferably, the end of the ring idler is provided with an external thread and fitted with a nut, and a limit disk is arranged on the ring idler near the nut; the connecting head is sleeved between the nut of the ring idler and the limit disk A ring-shaped rotating groove is arranged on the peripheral side of the connecting head, a rotating ring is installed in the rotating groove, and one end of the coil spring is connected with the rotating ring.

Preferably, it also includes a pressure adaptive adjustment assembly, the pressure adaptive adjustment assembly includes a hydraulic adjustment cylinder, and two sliding pistons are arranged in the hydraulic adjustment cylinder to cooperate with the hydraulic adjustment cylinder, and the outer surface of the sliding piston is It is connected with the other end of the coil spring; the side wall of the middle section of the hydraulic adjustment cylinder is also provided with a suction and discharge pipeline, and the suction and discharge pipeline is communicated with the hydraulic pump; A pressure sensor on the roller for detecting the pressure between the ring idler and the cloth roll, the pressure sensor and the hydraulic pump are all electrically connected with the controller.

Preferably, the upper part of the cylinder body is hingedly provided with a feeding top door.

Preferably, the end of the swing rod away from the ring idler is provided with a hook head, and the hook head protrudes out of the cylinder through the installation hole; it also includes an opening drive assembly, the opening drive assembly includes a sleeve disposed on the outside of the cylinder. Adjustment rings on the peripheral surfaces of both ends of the cylinder, the adjustment rings are installed on the cylinder through bearings; the inner surface of the adjustment ring is provided with a tooth block matched with the hook head on the swing rod, and the outer surface of the adjustment ring A gear ring is provided; the opening drive assembly also includes a rotating shaft arranged at the bottom of the cylinder and extending along the length direction of the cylinder, the middle section of the rotating shaft is drivingly connected with the opening motor fixed at the bottom of the cylinder, and the two parts of the rotating shaft are An adjusting gear is fixedly arranged at the end, and the adjusting gear meshes with the gear ring on the adjusting ring.

Preferably, the center of the end faces of the two ends of the barrel is further provided with an adjusting screw, the adjusting screw extends along the axial direction of the barrel, and forms a thread fit with the end face of the barrel; the inner end of the adjusting screw is provided with an end disc, The outer end is provided with an adjustment handwheel.

Preferably, an outlet guide roller is provided at the outlet.

The beneficial effects of the present invention are embodied in the following: it can effectively ensure the stability of the cloth roll at each stage of unwinding, prevent its jumping, and provide a strong guarantee for the normal operation of the conveying mechanism, and is especially suitable for occasions where the unwinding speed is required to be high , which laid the foundation for the speed-up of the cloth processing production line. Specifically, during the use of the unwinding drum of the present invention, the cloth roll is placed in the installation area between the ring idlers, and each ring idler can always keep in contact with the cloth roll under the drive of the clamping drive assembly. Stable contact, because the traditional pressing roller positioning method is replaced by the encircling form, the cloth roll basically has no jump during the unwinding process, and a small number of ring idlers can adapt to the different time changes of the cloth roll during the whole unwinding process. big to small changes. With the improvement of the cloth roll stability, the impact of the cloth roll jump on the operation of the conveying mechanism becomes smaller, so the invention is especially suitable for the unwinding requirements of the cloth processing high-speed production line, which lays a solid foundation for improving the production efficiency.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the installation schematic diagram of conveying mechanism;

Fig. 3 is the left side view of the impurity cleaning mechanism in Fig. 1;

Fig. 4 is the A-A view of the structure shown in Fig. 3;

Fig. 5 is the structural representation of unwinding drum;

Fig. 6 is the rear view of Fig. 5;

Fig. 7 is the left side view of Fig. 5;

Fig. 8 is the B-B view of the structure shown in Fig. 5;

FIG. 9 is a schematic diagram of a use state of the structure shown in FIG. 8;

Figure 10 is a schematic diagram of the installation of the connector;

Figure 11 is a schematic diagram of the internal structure of the hydraulic adjustment cylinder.

Detailed ways

A textile fabric unwinding drum as shown in Figure 1-11 is used for unwinding and conveying the fabric roll 6 before the printing, dyeing, compounding and other process equipment, so as to ensure the normal unwinding of the subsequent process. Similar to the traditional unwinding equipment, the present invention is provided with an installation base, that is, the base 1 has many specific structures, and can be a table type, a groove type, etc. Made of high-strength materials such as stainless steel and alloy steel.

The base 1 is sequentially provided with a cloth roll supporting mechanism 2 and a conveying mechanism 3 along the cloth conveying direction. The cloth roll supporting mechanism 2 is used to place the cloth roll 6 and ensure that the cloth roll 6 is in the cloth roll supporting mechanism 2. can rotate freely. The conveying mechanism 3, as the main power for unwinding, can clamp and convey the cloth, and the conveying force generated by the conveying mechanism 3 drives the cloth roll 6 to rotate to realize the unwinding.

The invention can simultaneously satisfy the pre-unwinding of process equipment such as cloth printing and dyeing, compounding, bronzing, etc. It can unwind a single cloth, and can also be applied before the compounding process to unwind two layers of the same material or different materials at the same time. roll. Of course, in this case, the cloth roll supporting mechanism 2 should satisfy the installation of two cloth rolls 6 at the same time, that is to say, two unwinding drums 5 are provided on it. As shown in FIG. 1 , the cloth roll supporting mechanism 2 includes a pair of installation side plates 4 arranged on both sides of the front end of the base 1 , and two unwinding drums 5 are arranged between the installation side plates 4 . A cloth roll 6 is installed on each of the unwinding drums 5 . Through such a design, the present invention can carry two cloth rolls 6 at the same time, but the key point is how to unwind the two cloth rolls 6 synchronously with high stability through the conveying mechanism 3 .

As shown in FIGS. 1 and 2 , the conveying mechanism 3 of the present invention includes a pair of uprights 7 arranged on both sides of the rear end of the base 1 , two sets of pinch components arranged between the upper ends of the uprights 7 , and a pair of pinch components for A pinch drive assembly that drives two sets of pinch assemblies to act synchronously. The two groups of pinch components are distributed up and down, and the cloths corresponding to the two cloth rolls 6 pass through the two groups of pinch components respectively. In other words, that is to say, the two groups of pinch components arranged on the upper part of the upright column 7 of the present invention are distributed one above the other, and the cloth is clamped and conveyed by the two groups of pinch components respectively.

As shown in FIG. 2 , each group of the pinch components includes an upper pinch roller 8 and a lower pinch roller 9, and both ends of the upper pinch roller 8 and the lower pinch roller 9 are respectively mounted on the upright column 7, And form a rotational fit with the upright column 7 . The cloth is located between the upper clamping roller 8 and the lower clamping roller 9, and the uniform and stable transportation of a piece of cloth is realized by the synchronous rotation of the upper clamping roller 8 and the lower clamping roller 9. For this reason, the upper clamping roller 8 and the lower clamping roller are One end of the 9 is provided with a first gear 10 and a second gear 11 respectively, and the first gear 10 and the second gear 11 mesh with each other. Any rotation of the upper clamping roller 8 and the lower clamping roller 9 will drive the remaining one to rotate synchronously. As for how to realize the synchronous rotation between the two groups of pinch components, the method adopted in the present invention is that the ends of the two upper pinch rollers 8 away from the first gear 10 are respectively provided with a first synchronizing wheel 12 and a second synchronizing wheel 13 , the first synchronizing wheel 12 and the second synchronizing wheel 13 are connected by a synchronous belt 14 in a driving manner. After this design, as long as any one of the four pinch rollers of the two groups of pinch components is connected to the pinch drive component, the four pinch rollers can be driven to rotate at a constant speed synchronously.

During use, the cloth roll 6 is placed on the cloth roll supporting mechanism 2 and is kept in a state of being able to rotate freely. Since the upper nip roller 8 and the lower nip roller 9 of the conveying mechanism 3 are connected by transmission through the first gear 10 and the second gear 11 , the upper nip roller 8 can drive the lower nip roller 9 to rotate synchronously during the rotation. In order to further improve the stability of the transmission between the first gear 10 and the second gear 11, the first gear 10 and the second gear 11 are preferably both helical gears. At the same time, a transmission connection is formed between the two upper pinch rollers 8 through the first synchronous wheel 12 , the second synchronous wheel 13 and the synchronous belt 14 . Therefore, when the pinch driving assembly drives the upper pinch roller 8 located above to rotate, it can drive the upper pinch roller 8 located below to rotate synchronously, thereby realizing synchronous and stable conveying of the double-layer cloth. Compared with the traditional method, the conveying mechanism 3 of the present invention simplifies the implementation logic of synchronous conveying, reduces the risk of circuit failure caused by excessive electrical components, and not only has more accurate control, but also lowers equipment cost.

The pinch drive assembly of the present invention has many specific structures. For example, it can be a common motor connected to the pinch roller. Of course, in order to realize the adjustment of the conveying speed, a speed regulating motor with adjustable speed can also be used. As shown in FIG. 2 , in a simpler way, the pinch drive assembly includes a gearbox 15 and a drive motor 16 , the driving motor 16 provides the motive power, and the speed is adjusted through the gearbox 15 , and the gearbox 15 It is better to use the gearbox 15 with the infinitely variable speed function, so as to adapt to a wider range of speed change requirements. The specific installation method is as follows: the outer surface of the column 7 corresponding to one end of the upper clamping roller 8 is provided with a first fixing plate 17 and the inner surface is provided with a second fixing plate 18 . The drive motor 16 is fixed on the second fixing plate 18 , and the gearbox 15 is fixed on the first fixing plate 17 . The power output end of the drive motor 16 is connected to the power input end of the gearbox 15 , and the power output end of the gearbox 15 is connected to the upper clamping roller 8 located above.

Because the cloth of the cloth roll 6 will have a certain friction with each nip roller, conveying roller, etc. during the process of unwinding, clamping and conveying, which will lead to the generation of static electricity, and the generation of static electricity will easily affect the subsequent processes, so in order to eliminate static electricity On this basis, the conveying mechanism 3 of the present invention can be further improved. As shown in FIG. 1 , a negative ion blower 19 for eliminating static electricity on the cloth is also arranged behind the pinch assembly, and the negative ion blower 19 is fixed Installed on the upright column 7, the negative ion blower 19 is located between the upper and lower cloths. The air outlet of the negative ion blower 19 is in a Y-shape, and the two forks of the Y-shape face the two pieces of cloth respectively. The wind blown by the negative ion blower 19 blows the surface of the cloth through the air outlet of Y itself, thereby neutralizing the static electricity carried on the cloth, thereby greatly improving the static state of the cloth. , compared with the traditional way of contacting the cloth through the grounding conductive rod, the arrangement is more flexible, and the risk of damage to the cloth surface is avoided.

In addition, during the pre-rolling, leveling, storage, and transportation process, there will inevitably be certain impurities on the surface of the cloth, such as: cotton balls, thread ends, dust and so on. In order to prevent these impurities from affecting the normal operation of the subsequent process equipment, the present invention also has the performance of cleaning the impurities on the surface of the cloth. As shown in Figures 1, 3 and 4, the cloth roll supporting mechanism 2 and the conveying mechanism 3 An impurity cleaning mechanism is also provided on the base 1 between them.

As shown in FIGS. 3 and 4 , the impurity cleaning mechanism includes a box-shaped casing 20 for cloth to pass through, and the casing 20 is mounted on the base 1 through a support frame 21 . The width of the casing 20 is preferably not less than the standard cloth width, and the height is suitable for the installation of the inner cleaning roller 22 . The inside of the casing 20 is provided with a hollow cleaning roller 22 extending along the width direction of the casing 20 . A number of dust suction holes 23 are evenly arranged on the side wall of the cleaning roller 22. Usually, the dust suction holes 23 are circular, of course, they can also be oval, strip, etc., as long as the adsorption of impurities can be satisfied, and the cleaning can be carried out. One end of the roller 22 is communicated with the dust removal fan for extracting the gas in the cleaning roller 22. When the dust removal fan is directly connected with the cleaning roller 22, in order to ensure that the rotation of the cleaning roller 22 does not affect the pipeline, usually at the end of the cleaning roller 22 A rotary joint is also provided. As shown in FIG. 4 , the two cleaning rollers 22 are in a row, and the two cleaning rollers 22 in a row are arranged one after the other, and the cloth passes around the two cleaning rollers 22 in an S shape.

The dust removal fan works to generate negative pressure inside the cleaning roller 22; the cloth is adsorbed on the cleaning roller 22. On the one hand, the folds on the cloth can be flattened and impurities can be scraped off by the contact between the cleaning roller 22 and the cloth; The dust, cotton balls and other impurities can enter the cleaning roller through the dust suction hole 23, and finally be sucked away by the dust removal fan. Compared with the traditional impurity cleaning method, the impurity cleaning mechanism of the present invention can ensure the effect of impurity suction due to the direct contact between the cloth and the cleaning roller 22. The cleaning roller 22 can be rotated without affecting the normal conveying of the cloth. Instead of wind blowing, it can also play a role in purifying the workshop environment, saving the installation cost of equipment such as dust hoods.

In addition, in order to uniformly process the suctioned impurities more efficiently, a better practice of the present invention can also be shown in FIG. A dust-collecting drawer 25 is provided inside the dust-collecting chamber 24 . The dust-collecting drawer 25 is inserted into the dust-collecting chamber 24 from bottom to top, and is locked with the dust-collecting chamber 24 by a hasp. The dust-collecting drawer 25 can be quickly removed from the dust-collecting cavity 24 for cleaning, and at the same time, the dust-collecting drawer 25 can be quickly installed in place.

The side of the dust collecting chamber 24 away from the casing 20 is provided with a suction pipe 26, the suction pipe 26 is connected with the air inlet end of the dust removal fan, and the flow paths of impurities and airflow are: cloth, dust suction holes 23, Cleaning roller 22 , dust collection drawer 25 , suction pipe 26 . In order to intercept the impurities in the dust collecting drawer 25 stably and efficiently, the side of the dust collecting drawer 25 close to the suction pipe 26 of the present invention is a filter screen 27, and the filter screen 27 can also be replaced with a filter cloth, as long as it can be lifted To the same interception and filtering effect, the other side of the dust-collecting drawer 25 is provided with a vertical escape hole 28 extending to the upper edge of the dust-collecting drawer 25 for the end of the cleaning roller 22 to be inserted. The ends of the rollers 22 protrude into the dust collection drawer 25 through the escape holes 28 .

The cleaning rollers 22 of the impurity cleaning mechanism of the present invention can be arranged in one row, which is suitable for the unwinding of a single cloth. Of course, two rows can also be arranged, that is to say, the housing 20 is provided with two rows of cleaning rollers 22, two rows of cleaning rollers 22. The cleaning rollers 22 are arranged up and down, which is suitable for the simultaneous unwinding of two layers of cloth. The cloth passes around the cleaning roller 22 in an S shape above the front cleaning roller 22 and below the rear cleaning roller 22, and is located below the cleaning roller 22 on the front side and above the cleaning roller 22 on the rear side. A roll groove 29 having a U-shaped cross section. The height of the roller groove 29 is not greater than 3/4 of the cleaning roller 22 , and the cleaning roller 22 is installed in the roller groove 29 . The U-shaped design of the roller groove 29 can make the overall suction direction of the cleaning roller 22 face the cloth, improve the suction performance of the cleaning roller 22 for impurities, and at the same time, it can carry out a certain amount of cleaning on the impurities scraped by the cleaning roller 22 but not sucked away. For collection, of course, the roller groove 29 is preferably detachable, so as to facilitate cleaning.

For the high-speed cloth processing production line, due to the fast conveying speed of the cloth, the stability of the cloth roll 6 during the unwinding process, that is, the cloth roll 6 does not vibrate or jump, will greatly affect the normal operation of the subsequent process equipment. , and the traditional idler roller with the unwinding roller of the pressure roller can not meet this requirement. Therefore, another major improvement of the present invention lies in the optimization of the supporting performance of the unwinding drum 5 .

Specifically, as shown in FIGS. 5-9 , the unwinding drum 5 includes a transversely arranged drum body and an encircling component arranged in the drum body. As shown in FIG. 5 , the lower part of one side of the drum body is provided with a guide At the outlet 30, the cloth is led out from the lead-out port 30. Of course, in order to improve the stability and smoothness of the lead-out of the cloth, the lead-out port 30 is provided with a cloth guide roller 54.

The encircling assembly is composed of at least three ring rollers 31 extending along the length of the cylinder. As shown in Figures 7-9, the number of the ring rollers 31 is four, of course, it can be more. As shown in FIGS. 5 and 6 , the upper part of the cylinder body is hingedly provided with a feeding top door 43 . In this way of upper feeding, the cloth roll 6 needs to be opened through the feeding top door 43 and the ring idler 31 . The gap between the backs is placed in the cylinder, so the number of the ring rollers 31 should not be set too much, usually three are set to meet the clamping of the cloth roll 6, and the cloth roll is formed between the ring rollers 31. 6 installation area. The two ends of the ring idler 31 are respectively provided with a swing rod 32, one end of the ring idler 31 is mounted on one end of the swing rod 32 and forms a rotating fit with the swing rod 32, and the other end of the swing rod 32 is hinged The shaft is hingedly arranged in the mounting hole 33 on the side wall of the cylinder. By swinging the swing rod 32 , the present invention can drive the ring idler 31 to swing in an arc shape around the hinge shaft, thereby realizing the embracing and clamping of the cloth roll 6 .

Of course, the unwinding drum 5 of the present invention is also provided with a clamping drive assembly for driving the swinging rods 32 corresponding to the ring rollers 31 to swing, so as to drive the ring rollers 31 to be clamped on the cloth roll 6 . There are many specific structures of the clamping drive assembly, for example: the clamping drive assembly can be a cylinder for driving the swing rod 32 to swing, an electric push rod, etc., but this method is more complicated in layout, and the equipment cost high. To this end, the clamping driving component may be a spring arranged between the middle section of the swing rod 32 and the inner wall of the cylinder, and the spring is used to drive the swing rod 32 to rotate to realize the clamping.

As shown in FIG. 7 , a better design solution for the clamping drive assembly may be that a plurality of arc-shaped guide holes 34 are evenly arranged on both ends of the cylinder body corresponding to the number of the ring idlers 31 . 34 is consistent with the swing track of the ring idler 31 . The ends of the two ends of the ring idler 31 are correspondingly penetrated in the guide holes 34 and form a sliding fit with the guide holes 34 . The clamping drive assembly includes a connecting head 35 and an elastic reset piece. The two ends of each of the ring idlers 31 are provided with a connecting head 35 , and the connecting heads 35 of two adjacent ring idlers 31 are connected by elastic cables. The reset pieces are connected to each other. In this way, when three ring idlers 31 are provided, the connecting head 35 and the elastic reset member together form an equilateral triangle structure, and when four ring idlers 31 are provided, the connecting head 35 and the elastic reset member together form a A square structure as shown in Figure 7. The elastic restoring member may be in the form of an elastic rope, an elastic telescopic tube, etc., but the simplest solution is that the elastic restoring member is a coil spring 36 . After adopting such a design, the clamping drive assembly of the present invention is located outside the cylinder as a whole, which is more convenient for maintenance and replacement, and also lays a foundation for the adjustment of the elastic force.

During the use of the unwinding drum of the present invention, the cloth roll 6 is placed in the installation area between the ring idlers 31. The shaded part of the dotted line in Figs. 8 and 9 is the installation area. Driven by the drive assembly, it can always maintain stable contact with the cloth roll 6. Since the traditional pressing roller positioning method is replaced by the encircling form, the cloth roll 6 basically has no jumping during the unwinding process, and is supported by a small amount of ring support. The roller 31 can adapt to the change from large to small at different times during the whole unwinding process of the cloth roll 6. For example: when the diameter of the cloth roll 6 becomes smaller, the coil spring 36 can drive the connecting heads on the plurality of ring idlers 31. 35 close together, that is, drive the ring idler 31 to slide and close along the guide hole 34 to realize real-time clamping of the cloth roll 6 and prevent jumping. With the improvement of the stability of the cloth roll 6, the impact of the jumping of the cloth roll 6 on the operation of the conveying mechanism becomes smaller, so the present invention is especially suitable for the unwinding requirement of the cloth processing high-speed production line, and lays a solid foundation for improving the production efficiency.

Compared with the coil spring 36, the angle of the connecting head 35 has a certain change in the process of following the ring idler 31 along the guide hole 34. Considering the stability of the force of the coil spring 36, the present invention is a better practice. It is also possible that the connection node between the connecting head 35 and the coil spring 36 is in a rotatable form, which can follow the rotation to ensure that the coil spring 36 is in a straight and optimal elastic retraction state. To this end, as shown in FIG. 10 , the end of the ring idler 31 is provided with an external thread and fitted with a nut 37 , and a limit disk 38 is provided on the ring idler 31 near the nut 37 . The connecting head 35 is sleeved on the ring roller 31 between the nut 37 of the ring roller 31 and the limit plate 38 , and is locked by the nut 37 . A ring-shaped rotating groove is provided on the peripheral side of the connecting head 35 , a rotating ring 39 is installed in the rotating groove, and one end of the coil spring 36 is connected with the rotating ring 39 . Through the design of the rotating ring 39, the working condition of the coil spring 36 can be effectively improved, so that the coil spring 36 is more stable during the retraction process. At the same time, this method is also more convenient for the processing and assembly of each component.

For the cloth roll 6 with a larger diameter, in order to ensure the entire unwinding stage, the ring idler 31 has a good clamping performance for the cloth roll 6, and the maximum stretching limit of the coil spring 36 must meet the cloth roll 6. Therefore, when the cloth roll 6 is in the maximum size state, the coil spring 36 may generate an excessive rebound force, which will cause the cloth roll 6 to be clamped too tightly, thereby affecting the smoothness of unwinding. For this reason, the present invention should also have the function of being able to adjust the contraction elastic force of the coil spring 36 .

7 and 11, it also includes a pressure adaptive adjustment assembly, the pressure adaptive adjustment assembly includes a hydraulic adjustment cylinder 40, and the hydraulic adjustment cylinder 40 is provided with two sliding pistons matched with the hydraulic adjustment cylinder 40 41. The outer surface of the sliding piston 41 is connected with the other end of the coil spring 36. In order to prevent the movable piston 41 from being out of position, the hydraulic adjustment cylinder 40 may be provided with a limiter for limiting the limit position of the sliding piston 41 in the hydraulic adjustment cylinder. Limit parts. The side wall of the middle section of the hydraulic adjustment cylinder 40 is further provided with a suction and discharge pipeline 42, and the suction and discharge pipeline 42 is communicated with the hydraulic pump. The pressure self-adaptive adjustment component also includes a pressure sensor installed on the ring idler 31 for detecting the pressure between the ring idler 31 and the cloth roll 6 , and the pressure sensor and the hydraulic pump are both electrically connected to the controller. When in use, the pressure sensor detects the pressure value of the ring idler 31 on the cloth roll 6 in real time. When the pressure value is too large, the hydraulic pump injects hydraulic oil into the hydraulic adjustment cylinder 40 through the suction and discharge pipeline 42, and the sliding piston 41 moves toward both ends. When sliding, the elastic force of the coil spring 36 decreases. On the contrary, the hydraulic oil in the hydraulic adjustment cylinder 40 is drawn out by the hydraulic pump, and the sliding piston 41 gathers toward the middle, thereby increasing the elastic force of the coil spring 36 .

Considering that each ring idler 31 needs to be opened when the cloth roll 6 is installed, for this reason, a better practice of the present invention is that the end of the swing rod 32 away from one end of the ring idler 31 is provided with a hook head 44 , the hook head 44 protrudes out of the cylinder through the mounting hole 33 . By exerting a force on the hook head 44, the swing rod 32 is urged to rotate, thereby driving the ring idler 31 to open. The specific driving mode is as follows, as shown in FIGS. 5 and 8 , the present invention also includes an opening and driving assembly, and the opening and 45 is mounted on the barrel through bearings 46 . The inner surface of the adjustment ring 45 is provided with a toothed block 47 which is matched with the hook head 44 on the swing rod 32 , and the outer surface of the adjustment ring 45 is provided with a toothed ring 48 . The expansion drive assembly also includes a rotating shaft 49 arranged at the bottom of the cylinder and extending along the length of the cylinder. An adjusting gear 51 is fixedly arranged, and the adjusting gear 51 meshes with the gear ring 48 on the adjusting ring 45 . When working, the opening motor 50 drives the rotating shaft 49 to rotate, the rotating shaft 49 drives the adjusting gear 51, the adjusting gear 51 drives the gear ring 48, and the gear ring 48 drives the adjusting ring 45. During the rotating process of the adjusting ring 45, the teeth on the inner surface of the adjusting ring 45 are formed. The block 47 pushes the hook head 44 , thereby driving the swing rod 32 . After adopting this method, the opening of the ring idler 31 of the present invention becomes more convenient, thereby facilitating the installation and replacement of the cloth roll 6 .

In addition, the unwinding drum 5 of the present invention should also maintain the limit control on the two ends of the cloth roll 6, so that the unwinding drum 5 moves in the axial direction. The center is also provided with an adjusting screw 52, the adjusting screw 52 extends along the axial direction of the barrel, and forms a thread fit with the end face of the barrel. The inner end of the adjusting screw 52 is provided with an end plate, and the outer end is provided with an adjusting hand wheel 53 . The adjustment screw 52 can be rotated by adjusting the handwheel 53, and then the end plate is driven to change its position by the expansion and contraction of the adjustment screw 52 in the cylinder, and the end plate is used to limit the end of the cloth roll 6. Of course, in order to further reduce the end plate The frictional force between the end disc and the end of the cloth roll 6 can be in the form of a rotating disc, or the end disc can be connected with the adjusting screw 52 through a rotary joint.

Claims (5)

1. A textile fabric unwinding drum, comprising a base (1), and a cloth roll supporting mechanism (2) and a conveying mechanism (3) are sequentially arranged on the base (1) along the cloth conveying direction; It is characterized in that: the cloth roll supporting mechanism (2) comprises a pair of installation side plates (4) arranged on both sides of the front end of the base (1), and two unwinding plates are arranged between the installation side plates (4). drum (5), a cloth roll (6) is installed on each of the two unwinding drums (5); The unwinding drum (5) comprises a transversely arranged drum body and an encircling component arranged in the drum body, and a lead-out port (30) is provided at the lower part of one side of the drum body; The encircling assembly is composed of at least three ring idlers (31) extending along the length direction of the cylinder body, and an installation area of the cloth roll (6) is formed between the ring idlers (31); the ring idlers (31) A swing rod (32) is respectively provided at both ends of the roller, and one end of the ring idler (31) is mounted on one end of the swing rod (32) and forms a rotational fit with the swing rod (32). The other end is hingedly arranged in the mounting hole (33) on the side wall of the cylinder through the hinge shaft; The unwinding drum (5) is also provided with a clamp for driving the swing rod (32) corresponding to each ring idler (31) to swing, so as to drive each ring idler (31) to be clamped on the cloth roll (6). Hold the drive assembly; A plurality of arc-shaped guide holes (34) are evenly arranged on the two end surfaces of the cylinder body corresponding to the number of the ring idlers (31), and the guide holes (34) are consistent with the swing trajectory of the ring idler (31). ; The ends of the two ends of the ring idler (31) are correspondingly arranged in the guide hole (34) and form a sliding fit with the guide hole (34); The clamping drive assembly includes a connecting head (35) and an elastic reset piece, and both ends of each of the ring idlers (31) are provided with a connecting head (35), and two adjacent ring idlers (31) are provided with a connecting head (35). The connecting heads (35) are connected to each other by elastic reset pieces; The elastic restoring member is a coil spring (36); The end of the ring idler (31) is provided with an external thread and is fitted with a nut (37), and a limit disk (38) is arranged on the ring idler (31) near the nut (37); the connecting head ( 35) The ring idler (31) is sleeved on the ring idler (31) between the nut (37) of the ring idler (31) and the limit plate (38), and is locked by the nut (37); the connecting head (35) A ring-shaped rotating groove is arranged on the peripheral side of the coil spring, a rotating ring (39) is installed in the rotating groove, and one end of the coil spring (36) is connected with the rotating ring (39); It also includes a pressure adaptive adjustment assembly, the pressure adaptive adjustment assembly includes a hydraulic adjustment cylinder (40), and the hydraulic adjustment cylinder (40) is provided with two sliding pistons (41) matched with the hydraulic adjustment cylinder (40). ), the outer surface of the sliding piston (41) is connected with the other end of the coil spring (36); the side wall of the middle section of the hydraulic adjustment cylinder (40) is also provided with an extraction pipeline (42). The discharge line (42) is communicated with the hydraulic pump; the pressure self-adaptive adjustment assembly further includes a pressure pressure installed on the ring idler (31) for detecting the pressure between the ring idler (31) and the cloth roll (6). The sensor, the pressure sensor and the hydraulic pump are all electrically connected with the controller. 2 . The textile fabric unwinding drum according to claim 1 , wherein a feeding top door ( 43 ) is hingedly arranged on the upper part of the drum body. 3 . 3. The textile fabric unwinding drum according to claim 2, characterized in that: the end of the swing rod (32) away from one end of the ring idler (31) is provided with a hook head (44), and the hook head ( 44) Protruding out of the cylinder through the mounting hole (33); also includes an opening drive assembly, the opening drive assembly includes an adjustment ring (45) sleeved on the peripheral surfaces of both ends of the cylinder 45) Installed on the cylinder body through the bearing (46); the inner surface of the adjusting ring (45) is provided with a tooth block (47) which is matched with the hook (44) on the swing rod (32), and the adjusting ring ( 45) is provided with a toothed ring (48) on the outer surface; the opening drive assembly further comprises a rotating shaft (49) extending along the length direction of the cylinder, which is arranged at the bottom of the cylinder, and the middle section of the rotating shaft (49) is fixedly arranged with the The opening motor (50) at the bottom of the cylinder is connected in a driving manner, and the two ends of the rotating shaft (49) are fixedly provided with adjusting gears (51), the adjusting gears (51) and the gear ring (48) on the adjusting ring (45) meshed. 4. The textile fabric unwinding drum according to claim 3, characterized in that: the center of the end faces at both ends of the drum body is further provided with an adjusting screw (52), and the adjusting screw (52) extends along the axial direction of the drum body The inner end of the adjusting screw (52) is provided with an end disc, and the outer end is provided with an adjusting hand wheel (53). 5. The unwinding drum for textile fabrics according to claim 4, characterized in that: said lead-out port (30) is provided with a cloth-discharging guide roller (54).

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